Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product
names mentioned herein may be trademarks or registered trademarks of their respective owners.
For More Information :
Printed on recycled paper. ©2003, Pulse Engineering, Inc. T655.A (6/03)
Application Notes
1. The transformers have been developed for use as trans-
mit and receive transformers in T3 or DS3 links, using
bit rates of 44.736 Mbps and B3ZS coding on coaxial
cable. The characteristics allow compliance with the
pulse templates of CCITT G.703 as well as ATT T.A.34.
The transformers are also suitable for the E3 interface at
34.368 Mbps with HDB3 coding or STS-1 applications,
at 51.84 Mbps according to Bellcore TA-NWT-000253.
2. Bandwidth specifications are typical in a 75 Ωsystem.
Return loss meets the requirements of G.703. Materials
used in the products are UL94-V0 recognized. Products
meet the requirements of IEC 695-2-2 (Needle Flame
Test).
3. For those applications requiring a 1:1 turns ratio on the
transmit side, use only one half of the secondary (2CT)
winding.
4. Optional Tape & Reel packaging can be ordered by
adding a “T” suffix to the part number (i.e. TX3026T).
5. For other T3/DS3/E3/STS-1 Transformers, please see
data sheets T606, T619, T672, T663 and T668.
6. Transformer Selection Guide - Please contact Pulse
Applications Engineering or see our website for the
latest Pulse Transformer Selection Guide.
T3/DS3/E3/STS-1 TRANSFORMERS
Dual SMT, Extended Temperature Range
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